Sandy Hook Wastewater Treatment Facility
Knoxville, MD · Washington County · Publicly Owned Treatment Works
- Average flow
- 0.004 MGD
- Design flow
- 0.03 MGD
- NPDES permit
- MD0064530
- Effective
- Permit expires
- March 2029
- Population served
- 200
- CWNS 2022
Sandy Hook Wastewater Treatment Facility is a publicly owned wastewater treatment works in Knoxville, Washington County, Maryland treating an average of 0.004 million gallons per day against a permitted design capacity of 0.03 MGD, serving about 200 residents. It discharges under NPDES permit MD0064530 (effective), which expires in March 2029, with 20 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 20
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Sandy Hook Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Sandy Hook Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Maryland
Brunswick · 5 mi away
—
Sharpsburg · 8 mi away
0.11 MGD
Jefferson · 9 mi away
0.13 MGD
Point Of Rocks · 10 mi away
0.07 MGD
Middletown · 11 mi away
0.15 MGD
Middletown · 12 mi away
0.19 MGD
Middletown · 12 mi away
0.09 MGD
Boonsboro · 13 mi away
0.26 MGD
Sandy Hook Wastewater Treatment Facility: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated September 23, 2025.